500 Thread Count (White, King Pillowcases)

I am ordering this sheet set, but I need two more pillowcases. Can I purchase those separately ?

Will the white 500 thread count striped version of the king size pillow cases be back in stock? If so, when?

Es el juego de sabanas completo? o lo es solo las dos fundas de almohadas?? aclarar por favor

Hi, i returned the item today but why don't i see it as such on the amazon account?